repainting through paintEvent() function

[salmanmanekia]

by the way i also tried the repaint() slot ,i know it is not useful in my case but i just got an error,the declaration is as follows in my
.h file

QRegion r1

QRegion r1

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.cpp

//in constructor
r1(x,y,w,h,QRegion::Ellipse);
//in a slot 
repaint(r1) // error thrown here;

//in constructor
r1(x,y,w,h,QRegion::Ellipse);
//in a slot 
repaint(r1) // error thrown here;

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